HMS Opportune (S20)

HMS Opportune (S20) was an Oberon class submarine of the Royal Navy. She was built in 1964 and sold in 1993.

For several years the vessel resided at Pounds scrapyard in Portsmouth

Oberon-class submarine

Royal Navy	Oberon Ocelot Odin Olympus Onslaught Onyx *Opportune* Opossum Oracle Orpheus Osiris Otter Otus

Royal Australian Navy	Onslow Orion Otama Otway Ovens Oxley

Brazilian Navy	Humaitá Riachuelo Tonelero

/ Royal Canadian Navy	Ojibwa Okanagan Onondaga Olympus Osiris

Chilean Navy	O'Brien Hyatt

List of submarines of the Royal Navy List of submarine classes of the Royal Navy

“Preserve the mean; the opportune moment is best in all things.”
—Hesiod (c. 8th century B.C.)